Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 1 - Measurement - Problems - Page 10: 21

Answer

$(5.98*10^{24})kg/40u\div(1.661*10^{-27})kg/u=9.0*10^{49} atoms$

Work Step by Step

The mass of earth is 5.98*10^24kg. Convert the unit using 1u=1.661*10^-27 kg. The number of atom=mass of earth/average mass of an atom.
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